82845MP Datasheet, PDF (103/157 Pages) Intel Corporation – Intel 845 Family Chipset-Mobile 82845MP/82845MZ Chipset Memory Controller Hub Mobile (MCH-M)

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Intel^® 82845MP/82845MZ Chipset-Mobile (MCH-M)
Write Thermal Management Mode (WTMMode):
00
Thermal management via Counters and Hardware Thermal Management_on signal
mechanisms disabled.
01
Hardware Thermal Management_on signal mechanism is enabled. In this mode, as
long as the Thermal Management_on signal is asserted, write thermal management is in
effect based on the settings in WTMW and WTHM. When the Thermal Management_on
signal is de-asserted, write thermal management stops and the counters associated with
the WTMW and WTHM are reset. When the hardware Thermal Management_on signal
mechanism is not enabled, the Thermal Management_on signal has no effects.
10
Counter mechanism controlled through GDWSW and GWHT is enabled. When the
threshold set in GDWSW and GWHT is reached, thermal management start/stop cycles
occur based on the settings in WTMT, WTMMW and WTMHM.
11
Reserved
START Write Thermal Management (SWTM): When this bit is set to ‘1’ write thermal management
begins based on the settings in WTMW and WTHM, and remains to be in effect until this bit is reset
to ‘0’. When this bit is reset to ‘0’, write thermal management stops and the counters associated with
WTMW and WTHM are reset. Software writes to this bit to start and stop write thermal management.
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Datasheet
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